Definition of "doggone"

doggone

/ˈdɒɡ.ɒn/

adjective
no comparative, superlative doggonest
1. (US, dialectal) Euphemistic form of goddamned.
  Quotations
  "Hist!" exclaimed Black George. "I'll be dog-gone ef [if] I don't think we're chawed [chewed] up this time, sure as sin!"
  1849, Emerson Bennett, Leni-Leoti; or, Adventures in the Far West
interjection
1. (US, dialectal) Euphemistic form of goddamned; an expression of anger or annoyance.